1. Roger Smith aka Roger the Alien
from American Dad!
Roger is an alien from outer space that came down to Earth, and lives with the stereotypical american family, The Smith's.
Roger is known to be cruel, selfish, craft, mean, a jerk, and really funny. Even though Roger is a jerk, everybody loves Roger.
The reason why Roger is such a creative character, is because in order to leave the house he must dress up. When Roger is dressed up everyone sees a person, but the Smith's see an alien in a costume. When Roger is dressed up, everyone calls it a persona, because the persona has a backstory and everyone actually knows his persona. It's not like one day they just meet Ricky Spanish(Roger), they actually know him and he has a family, and his fake parents think that he is there son. Son't ask me how it works. Cause I have no idea. The show rarely explains it. In some cases Roger's persona, WHICH IS ROGER, dies, and two seconds later you see Roger as a different persona in a different place. Except the persona that was killed actually dies and is never seen again.
Roger has over 53 personas, his personas are a huge part of the plot and are usually the main plot or subplot.